21551622676080 has 160 divisors (see below), whose sum is σ = 80372968896000. Its totient is φ = 4666817534976.

The previous prime is 21551622676027. The next prime is 21551622676109. The reversal of 21551622676080 is 8067622615512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 337556155 + ... + 337619994.

It is an arithmetic number, because the mean of its divisors is an integer number (502331055600).

Almost surely, 2^{21551622676080} is an apocalyptic number.

21551622676080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21551622676080 is an abundant number, since it is smaller than the sum of its proper divisors (58821346219920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21551622676080 is a wasteful number, since it uses less digits than its factorization.

21551622676080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675176191 (or 675176185 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 21551622676080 in words is "twenty-one trillion, five hundred fifty-one billion, six hundred twenty-two million, six hundred seventy-six thousand, eighty".